1. Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Viikinkaari 9, Biocenter 1, P.O. Box 56, Helsinki FIN-00014, Finland
2. Department of Clinical Chemistry and Haematology, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, Haartmaninkatu 8, P.O. Box 63, Helsinki FIN-00014, Finland
3. Department of Biochemistry and Molecular Biology, Medical University in Lublin, ul. Chodzki 1, Lublin 20-093, Poland
4. Institute of Biomedicine and Western Cancer Centre FICAN West, University of Turku, Turku 20101, Finland
5. Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen DK-2100, Denmark
6. Department of Virology, Faculty of Medicine, University of Helsinki, Haartmaninkatu 3, P.O. Box 21, Helsinki FIN-00014, Finland
7. School of Pharmacy, University of Eastern Finland, P.O. Box 1627, Kuopio FIN-70211, Finland
8. Dept. of Internal Medicine VIII, University Hospital Tübingen, Otfried-Müller-Strasse 14, Tübingen DE-72076, Germany
9. Department of Biological and Environmental Science, University of Jyväskylä, P.O. Box 35, Jyväskylä FI-40014, Finland
10. Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box
35, Jyväskylä FI-40014, Finland
11. Department of Biochemistry, University of Turku, Turku FIN-20014, Finland